Main Products: Polyurethane ,Rigid Foam System ,Blend Polyol
Polyurethane foam system for solar energy
Negotiable /Ton
Min.Order:10 Tons
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Shanghai Dongda Polyurethane Co., Ltd.
Business Type: Manufacturer,Trading Company
Shanghai ChinaMain Products: Polyurethane ,Rigid Foam System ,Blend PolyolProduct Details
Blend polyether polyol for solar energy
Physical properties
| Appearance | Light yellow to brown yellow transparent liquid | |
| OH | (mgKOH/g) | 300-400 |
| Dynamic viscosity(25) | mPa.s | 300-450 |
| Density(20) | g/ml | 1.12-1.15 |
| Storage Temperature | 10--25 | |
| Storage stability | month | 6 |
Process and reaction characteristics
| Handed mix | For high pressure machine | ||
| Material Temperature | 30-40 | 30--40 | |
| Mold Temperature | 35-45 | 35--45 | |
| CT | s | 12--16 | 5--10 |
| GT | s | 40-60 | 20--40 |
| TFT | s | 70--90 | 40--60 |
| Free Density | kg/m3 | 30--35 | 28--33 |
Foam Properties
| Density Apparent | GB/T 6343 | ≥35kg/m3 |
| Obturator rate | GB/T 10799 | ≥90% |
| Initial thermal conductivity | GB/T 3399 | ≤19mW/(m.K) |
| Compressive strength | GB/T 8813 | ≥140kPa |
| Dimensional Stability 24 hours -20 | GB/T 8811 | ≤0.5% |
| 24 hours 100 | ≤1.0% |
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